While we might never be able to have 100% of our code strict, we can at
the very least do it for all of our tests. This ensures that our tests
are using our API with the types as intended by the test author, and not
silently be cast to what our API requires.
* Avoid Allocating RowDimension Unneccesarily
This PR builds on PR #3527, introduced but subsequently closed by @goetas. The observation was that AutoFilter did not need to allocate a new RowDimension when the row was not to be filtered. While vetting the PR, it became apparent that Xlsx Writer also allocates RowDimension unnecessarily, with some minor adjustments possible for Ods and Mpdf as well. My tests confirm the initial observation that there can be a considerable memory savings when RowDimension is allocated only when needed. So, even though the original PR is withdrawn, there seems to be value in proceeding with it anyhow.
* Add Some Tests
Adrien Crivelli
oleibman